title: Magnetism of solids resulting from spin polarization of p orbitals.
abstract: Magnetism in systems that do not contain transition metal or rare earth ions was recently observed or predicted to exist in a wide variety of systems. We summarize both experimental and theoretical results obtained for ideal bulk II-V and II-IV compounds, molecular crystals containing O(2) or N(2) molecules as structural units, as well as for carbon-based materials such as graphite and graphene nanoribbons. Magnetism can be an intrinsic property of a perfect crystal, or it can be induced by non-magnetic dopants or defects. In the case of vacancies, spin polarization is local and results in their high spin states. The non-vanishing spin polarization is shown to originate in the strong spin polarization of the 2p shell of light atoms from the second row of the periodic table.
authors.affiliation: Institute of Physics PAS, aleja Lotnikow 32/46, PL-02-668 Warsaw, Poland.
authors.forename: O
authors.initials: O
authors.lastname: Volnianska
authors.forename: P
authors.initials: P
authors.lastname: Boguslawski
mesh_terms: D006108:Graphite / Q000737:chemistry*; D008280:Magnetics; D008958:Models, Molecular; D037742:Nanotubes, Carbon / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D006108:Graphite